David R Zimmer

CIK 1227478 · View on SEC EDGAR ↗

Insider

First SEC filing: May 25, 2006 · Latest: May 25, 2006

On this page

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 68 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

68 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Nov. 7, 2017 TWIN S 1,500 $24.96 $37,440 31,868 Direct -4.50% Disposed 0.0% (price as of 2026-08-21)
April 28, 2014 STRT S 60 $67.02 $4,021 2,500 Direct -2.34% Disposed 19.9% (price as of 2026-08-21)
April 28, 2014 STRT S 540 $67.00 $36,180 2,560 Direct -17.42% Disposed 20.0% (price as of 2026-08-21)
Jan. 31, 2014 TWIN S 1,500 $23.69 $35,535 17,007 Direct -8.11% Disposed 5.4% (price as of 2026-08-21)
April 26, 2011 TWIN S 7,200 $34.30 $246,960 11,898 Direct -37.70% Disposed -27.2% (price as of 2026-08-21)
Nov. 19, 2010 TWIN S 2,210 $24.37 $53,858 11,898 Direct -15.66% Disposed 2.5% (price as of 2026-08-21)
Aug. 27, 2010 TWIN S 3,600 $12.00 $43,200 5,600 Direct -39.13% Disposed 108.1% (price as of 2026-08-21)
Oct. 28, 2008 TWIN P 1,400 $6.72 $9,408 7,400 Direct +23.33% Acquired 271.6% (price as of 2026-08-21)
Oct. 28, 2008 TWIN P 600 $6.72 $4,032 8,000 Direct +8.11% Acquired 271.6% (price as of 2026-08-21)
Feb. 7, 2008 TWIN S 100 $16.26 $1,626 4,800 Direct -2.04% Disposed 53.6% (price as of 2026-08-21)
Feb. 7, 2008 TWIN S 100 $16.45 $1,645 4,900 Direct -2.00% Disposed 51.8% (price as of 2026-08-21)
Feb. 7, 2008 TWIN S 94 $16.41 $1,543 5,000 Direct -1.85% Disposed 52.2% (price as of 2026-08-21)
Feb. 7, 2008 TWIN S 400 $16.29 $6,516 5,094 Direct -7.28% Disposed 53.3% (price as of 2026-08-21)
Feb. 7, 2008 TWIN S 100 $16.28 $1,628 5,494 Direct -1.79% Disposed 53.4% (price as of 2026-08-21)
Feb. 7, 2008 TWIN S 500 $16.25 $8,125 5,594 Direct -8.20% Disposed 53.7% (price as of 2026-08-21)
Feb. 7, 2008 TWIN S 700 $16.27 $11,389 6,094 Direct -10.30% Disposed 53.5% (price as of 2026-08-21)
Feb. 7, 2008 TWIN S 100 $16.27 $1,627 6,794 Direct -1.45% Disposed 53.5% (price as of 2026-08-21)
Feb. 7, 2008 TWIN S 100 $16.27 $1,627 6,894 Direct -1.43% Disposed 53.5% (price as of 2026-08-21)
Feb. 7, 2008 TWIN S 100 $16.32 $1,632 6,994 Direct -1.41% Disposed 53.0% (price as of 2026-08-21)
Feb. 7, 2008 TWIN S 200 $16.33 $3,266 7,094 Direct -2.74% Disposed 52.9% (price as of 2026-08-21)
Feb. 6, 2008 TWIN S 520 $16.50 $8,580 7,294 Direct -6.65% Disposed 51.3% (price as of 2026-08-21)
Feb. 6, 2008 TWIN S 100 $16.53 $1,653 7,814 Direct -1.26% Disposed 51.1% (price as of 2026-08-21)
Feb. 4, 2008 TWIN S 100 $17.20 $1,720 4,800 Direct -2.04% Disposed 45.2% (price as of 2026-08-21)
Feb. 4, 2008 TWIN S 4,786 $17.18 $82,223 4,900 Direct -49.41% Disposed 45.3% (price as of 2026-08-21)
Aug. 31, 2007 TWIN S 1,650 $53.82 $88,803 1,200 Direct -57.89% Disposed -7.2% (price as of 2026-08-21)
Aug. 31, 2007 TWIN S 50 $53.84 $2,692 2,850 Direct -1.72% Disposed -7.2% (price as of 2026-08-21)
Aug. 30, 2007 TWIN S 300 $53.50 $16,050 2,900 Direct -9.38% Disposed -6.7% (price as of 2026-08-21)
Aug. 30, 2007 TWIN S 20 $53.31 $1,066 0 Indirect -100.00% Disposed -6.3% (price as of 2026-08-21)
Aug. 28, 2007 STRT P 300 $48.77 $14,631 300 Direct — Acquired 64.8% (price as of 2026-08-21)
May 23, 2006 TWIN S 6,000 $30.51 $183,060 7,800 Direct -43.48% Disposed 63.7% (price as of 2026-08-21)
May 23, 2006 TWIN S 1,000 $30.90 $30,900 13,800 Direct -6.76% Disposed 61.6% (price as of 2026-08-21)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
April 26, 2011 TWIN Stock Options Common Stock (1,200) $14.61 Oct. 16, 2019 1,200 Disposed
April 26, 2011 TWIN Stock Options Common Stock (1,200) $10.01 Oct. 17, 2018 1,200 Disposed
April 26, 2011 TWIN Stock Options Common Stock (1,200) $27.54 Oct. 19, 2017 1,200 Disposed
April 26, 2011 TWIN Stock Options Common Stock (1,200) $18.00 Oct. 20, 2016 1,200 Disposed
April 26, 2011 TWIN Stock Options Common Stock (1,200) $10.11 Oct. 21, 2015 1,200 Disposed
April 26, 2011 TWIN Stock Options Common Stock (1,200) $6.22 Oct. 15, 2014 1,200 Disposed
Oct. 16, 2009 TWIN Stock Options Common Stock (1,200) $14.61 Oct. 16, 2019 1,200 Acquired
Oct. 17, 2008 TWIN Stock Options Common Stock (1,200) $10.01 Oct. 17, 2018 1,200 Acquired
Feb. 7, 2008 TWIN Stock Options Common Stock (2,494) $4.45 Aug. 4, 2010 2,494 Disposed
Feb. 6, 2008 TWIN Stock Options Common Stock (620) $4.45 Aug. 4, 2010 620 Disposed
Feb. 4, 2008 TWIN Stock Options Common Stock (886) $4.45 Aug. 4, 2010 886 Disposed
Feb. 4, 2008 TWIN Stock Options Common Stock (4,000) $3.76 Aug. 13, 2011 4,000 Disposed
Oct. 19, 2007 TWIN Stock Options Common Stock (600) $55.09 Oct. 19, 2017 600 Acquired
Aug. 30, 2007 TWIN Stock Options Common Stock (2,000) $6.50 Oct. 18, 2012 2,000 Disposed
Oct. 20, 2006 TWIN Stock Options Common Stock (600) $36.01 Oct. 20, 2016 600 Acquired
May 23, 2006 TWIN Stock Options Common Stock (2,000) $9.97 July 30, 2009 2,000 Disposed
May 23, 2006 TWIN Stock Options Common Stock (2,000) $11.47 Oct. 16, 2008 2,000 Disposed
May 23, 2006 TWIN Stock Options Common Stock (1,200) $13.00 Aug. 10, 2008 1,200 Disposed
May 23, 2006 TWIN Stock Options Common Stock (1,000) $14.44 Aug. 11, 2007 1,000 Disposed
May 23, 2006 TWIN Stock Options Common Stock (800) $10.94 Aug. 12, 2006 800 Disposed
Oct. 21, 2005 TWIN STOCK OPTIONS COMMON STOCK (300) $40.45 Oct. 21, 2015 300 Acquired
Oct. 15, 2004 TWIN STOCK OPTIONS COMMON STOCK (300) $24.90 Oct. 15, 2014 300 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 1 holding

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
May 31, 2006 STRT No Securities Beneficially Owned 0 Direct